WakeLock завершен, пока еще удерживается

The pm and keepScreenOn variables are globally defined.

I grab the PowerManager.WakeLock in my OnCreate method:

pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
keepScreenOn = pm.newWakeLock(PowerManager.SCREEN_BRIGHT_LOCK,"tpd");

in my onStart, onResume, and onRestart I grab the lock with

if (keepScreenOn == null) {
    keepScreenOn = pm.newakeLock(PowerManager,SCREEN_BRIGHT_LOCK,"tpd");
}
keepScreenOn.acquire();

in my onDestroy, onPause, and onStop I release the lock with:

if (keepScreenOn != null) {
  keepScreenOn.release();
  keepScreenOn = null
}

After my app exits I get a failure screen and adb complains that

java.lang.Exception: WakeLock finalized while still held: tpd

Tracing shows that I released the lock before exit. What have I missed?

There is no way out of the app without crossing at least one of onPause, onStop, or onDestroy. I can see that the app called release() as often as it called acquire() so even though the wakelock подсчитывается по ссылкам, у него все еще должно быть ноль ссылок.